Two relatively new modalities, follicular unit extraction (FUE) and scalp micropigmentation have changed the treatment of hair loss, to reduce the number of procedures and the total costs of the hair restoration process. These 2 modalities augment each other when treating patients with thinning hair and balding. The explosion of FUE procedures (which reflected 52.6% of the hair transplant proce...

Hair cycling is modulated by factors both intrinsic and extrinsic to hair follicles. Cycling defects lead to conditions such as aging-associated alopecia. Recently, we demonstrated that mouse skin exhibits regenerative hair waves, reflecting a coordinated regenerative behavior in follicle populations. Here, we use this model to explore the regenerative behavior of aging mouse skin. Old mice (>1...

The autologous transplantation of hair follicles that have been separated into single follicular units is an accepted treatment for androgenetic alopecia. Recent studies demonstrate that the multiple stem cell populations and surrounding cutaneous tissues coordinately regulate the hair follicle functions and skin homeostasis. Therefore, the critical issues for consideration regarding functional...

Although we are relatively naked in comparison with other primates, the human body is covered in a layer of fine hair (vellus and terminal hair) at a relatively high follicular density. There are relatively few explanations for the evolutionary maintenance of this type of human hair. Here, we experimentally test the hypothesis that human fine body hair plays a defensive function against ectopar...

Organ replacement regenerative therapy is purported to enable the replacement of organs damaged by disease, injury or aging in the foreseeable future. Here we demonstrate fully functional hair organ regeneration via the intracutaneous transplantation of a bioengineered pelage and vibrissa follicle germ. The pelage and vibrissae are reconstituted with embryonic skin-derived cells and adult vibri...

Tumors of the matrix of rigid structures include matrical tumors of the hairs, nails, and teeth. These tumors share similar phenotypical and signaling features. Although benign matrical hair tumors are among the most common of these tumors, hair matrix tumors containing pigmented melanocytes are very rare. The malignant variant called melanocytic pilomatrix carcinoma contains benign colonizing ...

28 INTRODUCTION Folliculitis is an inflammatory reaction in the superficial aspect of the hair follicle and can involve the follicular opening or the perifollicular hair follicles.1 There are controversies regarding the classification of folliculitis. It has been classified according to the causative factors either infectious folliculitis or noninfectious folliculitis, the other way of classifi...

Modern hair transplant is constantly evolving. We intend to demonstrate our techniques and methodologies, especially describe the dynamics of entire surgical process FUE (Follicular Unit Extraction), technique, from discussion strategy with patient evaluation donor area extraction implantation. The dermatologist must understand complexity procedure need for adequate training achieve a good resu...

© 2013 The Authors. doi: 10.2340/00015555-1372 Journal Compilation © 2013 Acta Dermato-Venereologica. ISSN 0001-5555 Eosinophilic pustular folliculitis (EPF) is an inflammatory disease characterized by pruritic follicular papulopustules of unknown aetiology. Histopathologically, a number of eosinophils infiltrate around and into hair follicles. Nevertheless, EPF uncommonly affects the palms and...

BACKGROUND Androgenetic alopecia is characterized by a defined area of progressive nonscarring alopecia. The clinical and histological findings in 15 women and 4 men with progressive scarring alopecia in a pattern distribution were studied. The results were evaluated and compared with clinicopathologic entities that feature scarring of the central scalp area, specifically, lichen planopilaris, ...